/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 * 
 * Todo : pas sur de la joindure Course.getByCourseModule. ON PEUT LE SUPPRIMER YAHAHAH
 */
package com.jmooc.servlets;

import com.jmooc.entity.Course;
import com.jmooc.entity.Question;
import com.jmooc.service.CourseService;
import com.jmooc.service.QuestionService;
import java.io.IOException;
import java.util.List;
import javax.ejb.EJB;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author Group
 */
@WebServlet(name = "IndexServlet", urlPatterns = {"/home"})
public class IndexServlet extends HttpServlet {
    
    @EJB
    private CourseService courseService;
    
    @EJB
    private QuestionService questionService;
    
    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        // Go to "/init" for populate database
        List<Course> courses = courseService.getAllCourses();
        
        List<Question> questions = questionService.getByCourse(courses.get(0));
        
        request.setAttribute("number", courses.size());
        request.setAttribute("courses", courses);
        request.setAttribute("questions", questions);
        request.getRequestDispatcher("/jsp/home.jsp").forward(request, response);
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
